/* 将默认body 的margin值改为0，当内容出现滚动条则不包含margin部分 */
html, body{background-color: #e7eaed; height:100%; margin: 0 !important;}
html{font-family: Arial, Helvetica, sans-serif; font-size:16px;}
table {width: 100%;}
table thead {display: block; width: 100%;}
table tbody {display: block; width: 100%; height: 270px; overflow-y: auto;}
table thead, tbody tr {display: table; width: 100%; table-layout: fixed;}

.form-control:focus{outline:none; box-shadow: none; -webkit-box-shadow:none;}
.form-control{border-radius: 0;}
.btn{border-radius: 0;}

.nav{min-height:30px; border-radius:0;}
.nav-tabs .nav-link{border-radius: 0;}
.nav>li>a{height:30px; padding-top:4px; border-radius: 0;}